ViewSonic SC-T25 VTOS, SC-T25 User Manual
SC-T25 (VTOS)
Thin Client
User Guide
Model No. VS16585
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Thank you for choosing ViewSonic
As a world leading provider of visual solutions, ViewSonic is dedicated to
exceeding the world’s expectations for technological evolution, innovation,
and simplicity. At ViewSonic, we believe that our products have the
potential to make a positive impact in the world, and we are confident that
the ViewSonic product you have chosen will serve you well.
Once again, thank you for choosing ViewSonic !
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Compliance Information
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that
may cause undesired operation.
Note: This equipment has been tested and found to comply with the limits for
a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy, and if it is not installed and used
in accordance with the instruction manual, it may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to
cause harmful interference, in which case the user will be required to correct the
interference at his own expense
Warning: You are cautioned that changes or modications not expressly approved
by the party responsible for compliance could void your authority to operate the
equipment.
For Canada
CAN ICES-3 (A)/NMB-3(A)
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Important Safety Instructions
1. Read these instructions completely before using the equipment.
2. Keep these instructions in a safe place.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this equipment near water. Warning: To reduce the risk of re or
electric shock, do not expose this apparatus to rain or moisture.
6. Do not block any ventilation openings. Install the equipment in accordance with
the manufacturer’s instructions.
7. Do not install near any heat sources such as radiators, heat registers, stoves, or
other devices (including ampliers) that produce heat.
8. Do not attempt to circumvent the safety provisions of the polarized or grounding-
type plug. A polarized plug has two blades with one wider than the other. A
grounding type plug has two blades and a third grounding prong. The wide blade
and the third prong are provided for your safety. If the plug does not t into your
outlet, consult an electrician for replacement of the outlet.
9. Protect the power cord from being tread upon or pinched, particularly at the plug,
and the point where if emerges from the equipment. Be sure that the power
outlet is located near the equipment so that it is easily accessible.
10. Only use attachments/accessories specied by the manufacturer.
11. Use only with the cart, stand, tripod, bracket, or table specied by the
manufacturer, or sold with the equipment. When a cart is used, use
caution when moving the cart/equipment combination to avoid injury from tipping
over.
12. Unplug this equipment when it will be unused for long periods of time.
13. Refer all servicing to qualied service personnel. Service is required when the
unit has been damaged in any way, such as: if the power-supply cord or plug is
damaged, if liquid is spilled onto or objects fall into the unit, if the unit is exposed
to rain or moisture, or if the unit does not operate normally or has been dropped.
14. Do not remove equipment covers and access any of the components inside the
equipment. Any access inside the equipment without an authorized or certied
technician may cause serious injuries and damage. For any problem, contact
your dealer for assistance.
15. Don’t use a keyboard and mouse that in total require more than 200 mA of rated
current during operation.
16. Use only power supplies listed in the user instructions.
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Declaration of RoHS2 Compliance
This product has been designed and manufactured in compliance with Directive
2011/65/EU of the European Parliament and the Council on restriction of the use
of certain hazardous substances in electrical and electronic equipment (RoHS2
Directive) and is deemed to comply with the maximum concentration values issued
by the European Technical Adaptation Committee (TAC) as shown below:
Substance
Proposed Maximum
Concentration
Actual Concentration
Lead (Pb) 0.1% < 0.1%
Mercury (Hg) 0.1% < 0.1%
Cadmium (Cd) 0.01% < 0.01%
Hexavalent Chromium (Cr6+) 0.1% < 0.1%
Polybrominated biphenyls (PBB) 0.1% < 0.1%
Polybrominated diphenyl ethers
(PBDE)
0.1% < 0.1%
Certain components of products as stated above are exempted under the Annex III
of the RoHS2 Directives as noted below:
Examples of exempted components are:
1. Mercury in cold cathode uorescent lamps and external electrode uorescent
lamps (CCFL and EEFL) for special purposes not exceeding (per lamp):
(1) Short length (≦500 mm): maximum 3.5 mg per lamp.
(2) Medium length (＞500 mm and ≦1,500 mm): maximum 5 mg per lamp.
(3) Long length (＞1,500 mm): maximum 13 mg per lamp.
2. Lead in glass of cathode ray tubes.
3. Lead in glass of uorescent tubes not exceeding 0.2% by weight.
4. Lead as an alloying element in aluminium containing up to 0.4% lead by weight.
5. Copper alloy containing up to 4% lead by weight.
6. Lead in high melting temperature type solders (i.e. lead-based alloys containing
85% by weight or more lead).
7. Electrical and electronic components containing lead in a glass or ceramic other
than dielectric ceramic in capacitors, e.g. piezoelectronic devices, or in a glass or
ceramic matrix compound.
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Copyright Information
Copyright © ViewSonic Corporation, 2017. All rights reserved.
ViewSonic, the three birds logo, and MultiClient are either registered trademarks or
trademarks of ViewSonic Corporation.
Microsoft
®
, Windows®, and MultiPoint™ are trademarks of the Microsoft group of
companies.
Product Registration
To meet your future needs, and to receive any additional product information as it
becomes available, please register your product on the Internet at: www.viewsonic.
com.
For Your Records
Product Name:
Model Number:
Document Number:
Serial Number:
Purchase Date:
SC-T25
ViewSonic Thin Client
VS16585
SC-T25_UG_ENG Rev. 1B 04-14-17
_______________________________
_______________________________
Product disposal at end of product life
ViewSonic respects the environment and is committed to working and living green.
Thank you for being part of Smarter, Greener Computing. Please visit ViewSonic
website to learn more.
USA & Canada: http://www.viewsonic.com/company/green/recycle-program/
Europe: http://www.viewsoniceurope.com/eu/support/call-desk/
Taiwan: http://recycle.epa.gov.tw/recycle/index2.aspx
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Contents
Connection Instructions: ...............................................................................1
1. Introduction ..............................................................................................2
2. VTOS management .............................................................................2
3. VTOS boot up & quick start tips below ......................................3
4. Local Keyboard Short Cuts ..............................................................4
5. Audio tips for the SC-T25 and Citrix HDX .................................7
6. Configure: Device ...............................................................................13
7. Configure: Displays ...........................................................................14
8. Configure: Servers .............................................................................17
9. Configure: Network ............................................................................19
10. Configure: Application .....................................................................20
12. FAQ ............................................................................................................32
Specifications ....................................................................................................45
Other Information .............................................................................................46
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Connection Instructions:
Step 1: Connect to Network with Ethernet Cable to Ethernet Jack (Cable not
supplied)
Step 2: Connect Keyboard & Mouse into USB port (Not supplied)
Step 3: Connect to monitor via HDMI to HDMI socket (Cable not supplied)
Step 4: Plug-in power to micro-USB, use Power Adapter supplied.
*At boot up, follow the on screen instructions to congure your device.
SC-T25
Quick Start Guide
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4 USB Ports
* Need some type of 3.5mm to
Plug-in power to micro-USB, use Power Adapter supplied
*Audio cable or headphones not included
Your SC-T25 is equipped with the LED to indicate the state of power and internal
storage.
The meanings of LED signals are described: LED Off(The client is off) / Red(The
client is on) / Activity Green( Internal Storage Activity)
NOTE: Please use the power adaptor from ViewSonic
®
or authorized source only.
(DSA-13PFC-05 FCA and DSA-13PFC-05-FUS)
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1. Introduction
VTOS has been optimized to deliver maximum Thin Client performance by using
Assembly Language routines and making full use of any integrated H.264 Hardware
decoders where possible.
An ARM Hard Float version of VTOS is available for the single Display SC-T25
delivering exceptional Citrix HDX performance at low cost.
A downloadable .exe installer for X86 Architecture VTOS RePC is used to create
a USB stick VTOS installer. Simply insert a 2GB or larger USB stick into the PC or
Laptop that you downloaded the .exe le to, then double click on the .exe installer
this will decompress the VTOS installer image and then write the image to the USB
stick. The newly created USB stick image also contains 4 text les which can be
edited before using the USB stick to install VTOS. The text les are mode.txt, proxy.
txt, vdm.txt & wireless.txt. See the self-explanatory information in each le.
The installation procedure for VTOS RePC is very simple, insert the USB stick into
the PC or Laptop to be Re-Purposed, boot up while tapping F10 to bring up the Boot
menu, select boot from USB.
A few seconds later the Blue ViewSonic Firmware Maintenance screen appears,
scroll down to the second choice “Wipe Everything and (Re) Install VTOS”, press
Enter
The installer will automatically detect the device’s storage and install VTOS
2. VTOS management
VTOS is managed with the ViewSonic Device Manager3.0 (VDM3.0) which may be
used for a variety of tasks, ranging from something as simple as rebooting a VTOS
device, to upgrading the device with the latest VTOS software. VDM3.0 runs on
Windows and Linux and supports all VTOS devices.
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3. VTOS boot up & quick start tips below
During installation of the X86 version of VTOS you have the option of selecting a
default Protocol for rst boot, this defaults to RDP if no option is chosen.
VTOS has the same look and feel regardless of the device that it is running on,
conguration may be carried out using VDM3.0 or the local Conguration menu
which is selected by clicking on the Congure Tab. The local Conguration menu can
be disabled by the Administrator setting a Password from the VDM3.0 console or a
password can be set on Vscong -> Misc Tab
The image below shows a password protected Vscong Conguration Menu
Password Required
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4. Local Keyboard Short Cuts
• Ctrl + Alt + c — launches Vsconfig
• Ctrl + Alt + t — launches a terminal console
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• Ctrl + Alt + d — switches desktop workspace
• Ctrl + Alt + s — enables shadowing mode using VNC. Two modes are available
the default “Active” mode, the end user just clicks on OK and their Desktop
session appears on the “Shadower” as defined by the Hostname/IP in the
dialog box below. The end user may select the View Only checkbox to restrict
the Administrator to View only, not allowing the Administrator to manipulate the
Desktop.
The end user may be instructed by the Administrator to change the Shadow Mode to
Passive via SSH, in this case the Port must also be changed from the default 443 to
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• Ctrl + Alt + v — launches the ALSA mixer for Audio adjustments
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You can also open an xterm with Ctrl-Alt-t and then enter alsamixer to set volumes
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5. Audio tips for the SC-T25 and Citrix HDX
If you wish to use a USB audio device or USB Headset please ensure that you plug
them in before starting the SC-T25 (or reboot after plugging in Devices).
You also need to set the USB Audio Headset & Microphone default volume before
you Log into the HDX session using Ctrl-Alt-v as above. Alternatively you can
open an xterm with Ctrl-Alt-t and then enter alsamixer to set volumes If you are not
using USB audio devices you may set the default audio volume using the Vscong
Peripherals Tab. On the SC-T25 only you can also force either HDMI audio output or
Analog audio output.
• Ctrl + Alt + r — invoked twice in 2 seconds to reset image to factory default
• Ctrl + Alt + i — launches the Monitor identification, useful for 2 or 3 Monitors
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Depending on your conguration, the default log out screen looks like the image
below.
Logged Out
Login
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In the image above, Citrix HDX mode has been congured to connect to Citrix
Storefront at https://xendesktop.thinlinx.com If I enter my login details of john@
test in the User name dialog and my password I will be connected immediately to
my Citrix Storefront Login screen for the user john at domain test, click on Log on to
enter Storefront
I am now logged into Storefront and can launch Desktops or Apps by clicking on
the Icons shown below. When I log out of the Desktop or App I am returned to
the Storefront as shown below. If I click in the top right corner and select Log off
Storefront, I see the screen further below
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If I then enter the name of the Desktop in the Command line arguments box in the
image below, in this case Windows10, instead of connecting to Storefront when I
click on Log ON my Windows 10 Desktop is launched instead. When I Log out of my
Windows 10 Desktop I see the Logged Out image on page 8 above. I can lock down
the Desktop by selecting the Auto reconnect check box shown in the image below.
In this case when I Log out of my Desktop I see the empty Login Screen shown on
Page 10 above
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